Microchip MPLAB X Integrated Development Environment (IDE)
MPLAB X IDE v2.15 Full Installation for Windows. (399MB
Zip file) The IDE includes the MPASM assembler, the MPLINK linker, the MPLIB librarian and documentation. Versions for Linux and OS X 10.x are available from Microchip.
The C18 compiler is only available for Windows. Microchip's current compiler for the PIC18 family is XC8. Versions of XC8 for Windows, Linux and Mac are available from Microchip (left sidebar). Please NOTE that we are not using the XC8 compiler.